Besides, the radius precision is accomplished by least square method with radius constraint.
基于设计半径已知条件，利用半径约束最小二乘法提高测量精度。
2
The method of least square circle is adopted to measure tool, head radius when a tool checking instrument measuring too, parameter.
对刀仪在测量刀具时，采用最小二乘圆法来测量刀尖半径；
3
Notice that the default has different radius Settings for each blob. You'll want to change the radius of each blob to 50, or at least make them the same size.